Help it’s easy! Which is one of the five main characteristics of a
civilization?
A. Specialized workers
B. Hunting and gathering
C. Fire
D. Tools

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

no i don't feel that humans have oversubscribed some medications